西安航空职业技术学院毕业设计论文飞机液压系统【摘要】本论文主要阐述了液压系统的原理,主要部件组成,功用，以及维护与修理。液压系统是指飞机上以油液为工作介质，靠油压驱动执行机构完成特定操纵动作的整套装置。液压系统由液压油箱、油箱增压系统、液压泵、地面勤务系统等组成。由于飞机液压系统的工作情况直接与飞行安全密切相关。故现代飞机上大多装有两套(或多套)相互独立的液压系统。单位功率重量小、系统传输效率高、安装简便灵活、惯性小、动态响应快、控制速度范围宽、油液本身有润滑作用、运动机件不易磨损是其优点；缺点为油液容易渗漏、不耐燃烧、操纵信号不易综合。与其他机械的液压系统相比，飞机液压系统的特点是动作速度快、工作温度和工作压力高。本论文主要以波音737为例分析飞机液压系统。关键词：液压系统驱动马达泵（EMDP）液压动力转换组件（PTU）Abstract:Thispaperdescribestheprincipleofthehydraulicsystem,majorcomponents,function,andmaintenanceandrepair.Aircrafthydraulicsystemistooilastheworkingmedium,bythehydraulicactuatortocompleteaspecificsetofdevicecontrolaction.Hydraulicsystembyhydraulictank,fueltankpressurizationsystem,hydraulicpump,groundservicesystemcomponents.Sincetheworkoftheaircrafthydraulicsystemdirectlyrelatedtoflightsafety.Therefore,mostmodernaircraftequippedwithtwo(orsets)ofindependenthydraulicsystem.Theweightofasmallunitpower,thesystemtransmissionefficiency,easeofinstallationflexibility,inertiaissmall,fastdynamicresponse,widespeedcontrol,lubricationoilitself,movingparts,easytowearitsadvantages;disadvantageofeasyoilleakage,impatienceburning,easytomanipulatethesignalintegrated.Hydraulicandothermechanicalsystems,aircrafthydraulicsystemischaracterizedbyamovementspeed,hightemperatureandpressure.Inthisthesis,anexampleofBoeing737aircrafthydraulicsystem.Keywords:ThehydraulicsystemEMDPPTU目录1西安航空职业技术学院毕业设计论文1.概述.......................................................................................................................................................42.飞机液压系统.......................................................................................................................................52.1工作原理.......................................................................................................................................52.2系统组成.......................................................................................................................................72.2.1液压油箱..............................................................................................................................72.2.2油箱增压系统......................................................................................................................72.2.3液压泵................................................................................................................................102.2.4PTU系统..............................................................................................................................122.2.5其他部位............................................................................................................................122.2.6地面勤务............................................................................................................................123.系统控制与指示.................................................................................................................................183.1主液压系统..............
